HomeToolsElectrical CalculatorsWatts to kWh Calculator

Watts to kWh Calculator

Calculate energy consumption from power over time.

Watts
Hours
kWh
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Reference & Formula

Formula

kWh = W × h ÷ 1000

Explained

Energy in kilowatt-hours equals power in watts times hours divided by 1000. Converts instantaneous power to cumulative energy.

Used For

Daily solar production estimation, appliance energy cost calculation

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